heater fan on 1995 GMC Jimmy

the heater fan does not work all the time . When it does not run it will not run at any speed. Sometimes it will run and at various speeds. It has been doing this for some time now. Bill

by in Germantown, WI on December 18, 2010
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2 answers
ANSWER by , December 21, 2010
sounds like your resister is going out or you have a wiring issue, check the resister first if that fixes it your good to go
ANSWER by , December 30, 2010
We have seen the blower motors that are intermittently failing cause this as well